Electric-lamp installation.



M. GUETT. Y ELECTRIC LAMP INSTALLATION- APPLICATION FILED 11.5.1911. RENEWED FEB. 23.1918.

1,261,928. Patented Apr. 9, 1918.

INVENTOR.

Monroe Guefi;

A TTOR NE Y.

Application filed April 5, 1917, Serial No. 160,065.

STATES PATENT OFFICE,

MONROE eun'rr, or mnrronn, comvncrrcur, assrenoa' TO THE near a nnenm manuracrunme conrm, or nanrrom), comvncrrcu'r, a coaronarron or CONNECTICUT.

ELECTRIC-LAMP INSTALLATION.

T all/whom it may concern:

Be it known that I, MONROE GUE'IT, a

' is a specification.

The object of this invention is to provide a novel construction and arrangement of a' lamp socket, which, when in its normal position with the lamp connected into the electrical circuit, is inaccessible for the purpose of the insertion or removal. of a lamp, but which may be swung out of normal position in order to permit of such insertion or re; moval. A particular instance where such a construction "is advantageous is in the manufacture-of relatively small lamp receptacles of the type commonly used as pilot or signal lights, which are preferably of very compact construction, the receptacle being recessed to receive the lamp but.

- Specification of Letters Patent.

Patented Apr. 9, 1918.

Renewed February 23, 1918. Serial No. 218,896.

' 13 into which the shell 14 of the lamp base not afiording sufilcient room to manipulate a lamp-with-a standard threaded base to cause its engagement with thesocket.

By my invention I- provide a pivotal mounting for the socket so that it can be h tion is'embodied.

swung outof normal position for thepurose of insertin or removing. the lamp.

e threaded "co ection has obvious advan:

types such as fingers the accompanying drawings I Figure 1 is a plan of-asimple form of pilot lamp receptacle in which my inventhew line of Fig. 2 is a section on Fig. 3 is aperspective'viewi'of the complete socket. 4

is threaded. As clearly seen in Fig. 3 this socket comprises a bifurcated member 15, between the arms of which is pivotally supported a socket member 16 by the trunnion's 17, in order that the socket member may be turned out of horizontal position While the lamp is being screwed intoor out of it, and when the lamp has been inserted it may be turned into'horizontal position. The thread engagement of the lamp base with this socket member permits of positively positioning the center contact 12 so that it will bear against the spring arm 10 and insure that this c'ontactshall always be maintained.

As here shown the socket member con-' sists of a spirally formed single convolution of stock of proper thickness to engage and move in the thread of the complementary member. In other words, it is a solid annulus with its wall increased in width at that part, where the stock is axially displaced to give the spiral formation, the

oblique connecting portion '20 being-notched on its inner edge as at 21 in order to permit of entering the thread of the male memberf- While this is the preferred form of the socket member, still I am aware. that other arrangements, one of which is illusofalamp. Provision is also made for/re-v "tratedin Fig. 5, and consists of a split taining the socket member in po'sition permit of inserting a lamp,- as for instance by the notch 26 which snaps down onto one;

side-of tlie socket member.

Fig. 4: is an edge v'iewof the socket mm;

her-

Fg. 5. is a'perspective view of amodifiia' tion. h i f Referring to the drawings, a denotesthe receptacle, '6, b, the binding posts for the circuit'wirespc denotes the lamp arranged horizontally in the receptacle andwith its base engaging a which is connecte to one binding the other to the other binding po These lamp terminals comprise a air of terminals, one of post, and

'. 1. Ina-device-of & a pair of cooperatively arranged circuit terarm 10 adapted to contact with the center" contact 12, of the lamp base, and a socket In accordance with the provisionsof the patent statutes I have described the principle of operation of my invention,' to--, gether with the apparatus wh ch I nowconsider. to represent the best embod ment thereof; but I desire to hare it understood that the apparatus shown. is only illustra- -Q, a at the invention can'b'e can-id t by other means. 1 p

' Iclaimas myiinvention:

the characterdescrlbed,

minals, one of which is a socket member, a

t T1 53. 1F -1 socket 1 181139 and adaoted in the norm position of said socket me: "with the other circuit tel position, and a Dive said socket member to permi o mo in; it

to out of with the supported lamp 5. normal position,

2. A lamp soclret comprisin bifurcated member and a sock sitioned between th operating parts on said soolre arms constituting a pivotal i said soclret m mber,

3. A lamp holder comprising a ringshaped socket member and trunnions projecting radially from opposite sides then 'rnay heturned out of normal position to permit of the removal of the lamp therefrom. i

5 In a device of the character descrihed, a hase of insulating material recessed to receive a lame, a fixed in the r cess one end thereof a contact spaced from said fixed contact Wi n not, in a device of the'character described with the top of the ease 5 port for said ring contact .ce turned out of normal it of securing a lamp the character described, g material reeessedtoreceive a t p a contact in the-recess at one endjt erect, a split ring contact spaced from said fixed contact and with its axis normally parallel with the top of the lease, ana a pivotal support contact on which it may he turned out of normal position to permit of securing a lamp therein.

4?. In a device of the character described E 702133 insulatin material recessed lit) lanp-receiving chancdier a fixed conmemher mounted in said chamber and spaced from said fixed contact, a ring provided With outwardly projecting diametricall opposite trunnions supported in said bifurcated member, said ring being adapted to receive the base of a lamp and support it in position with its axis parallel with the top of the "ease.

l 8., A lamp socket comprising a bifurcated memher and a socket member positioned bet son the arms thereof, and cooperating parts on said socket member and arms constituting a pivotal mounting for said socket menher and means "for holdin said socket a c mher when out of normal position.

MONRQE GUETT.

for said split ring 1 act at one end oi said chamber, a bifurcated I 

